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Who said: “Truth is ever to be found in simplicity, and not in the multiplicity and confusion of things.”
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Home > Category Index for Science Quotations > Category Index G > Category: Gill

Gill Quotes (3 quotes)

About the year 1772, being then an apprentice to a wheel-wright, or wagon maker, I laboured to discover some means of propelling land carriages without animal power. … one of my brothers [told me of] blacksmith’s boys, who, for amusement, had stopped up the touch hole of a gun barrel, then put in about a gill of water, and rammed down a tight wad; after which they put the breech in the smith’s fire, when it discharged itself with as loud a crack as if it had been loaded with powder. It immediately occurred to me, that here was the power to propel any wagon, if I could only apply it.
From 'On the Origin of Steam Boats and Steam Wagons', Thomas Cooper (ed.), The Emporium of Arts and Sciences (Feb 1814), 2, No. 2, 205.
Science quotes on:  |  Animal (309)  |  Apprentice (4)  |  Barrel (5)  |  Biography (227)  |  Blacksmith (4)  |  Carriage (8)  |  Crack (11)  |  Discharge (7)  |  Discovery (591)  |  Fire (117)  |  Gun (7)  |  Gunpowder (11)  |  Loud (7)  |  Power (273)  |  Propulsion (8)  |  Ram (3)  |  Steam Power (6)  |  Water (244)

The frillshark has many anatomical features similar to those of the ancient sharks that lived 25 to 30 million years ago. It has too many gills and too few dorsal fins for a modern shark, and its teeth, like those of fossil sharks, are three-pronged and briarlike. Some ichthyologists regard it as a relic derived from very ancient shark ancestors that have died out in the upper waters but, through this single species, are still carrying on their struggle for earthly survival, in the quiet of the deep sea.
(1961).
Science quotes on:  |  Anatomy (59)  |  Ancient (68)  |  Deep Sea (7)  |  Fin (3)  |  Fossil (107)  |  Marine Biology (23)  |  Million (89)  |  Modern (104)  |  Relic (4)  |  Shark (6)  |  Struggle (60)  |  Survival (49)  |  Tooth (23)

Why it is that animals, instead of developing in a simple and straightforward way, undergo in the course of their growth a series of complicated changes, during which they often acquire organs which have no function, and which, after remaining visible for a short time, disappear without leaving a trace ... To the Darwinian, the explanation of such facts is obvious. The stage when the tadpole breathes by gills is a repetition of the stage when the ancestors of the frog had not advanced in the scale of development beyond a fish.
In The Works of Francis Maitland Balfour (1885), Vol. 1, 702.
Science quotes on:  |  Acquisition (32)  |  Advance (123)  |  Ancestor (35)  |  Animal (309)  |  Breathe (22)  |  Change (291)  |  Complication (20)  |  Charles Darwin (284)  |  Development (228)  |  Disappearance (21)  |  Explanation (161)  |  Fact (609)  |  Fish (85)  |  Frog (30)  |  Function (90)  |  Growth (111)  |  Leaving (10)  |  Obvious (54)  |  Organ (60)  |  Remain (77)  |  Repetition (21)  |  Series (38)  |  Simplicity (126)  |  Stage (39)  |  Straightforward (4)  |  Trace (39)  |  Undergo (10)  |  Visibility (6)


Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
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Sophie Germain
Gertrude Elion
Ernest Rutherford
James Chadwick
Marcel Proust
William Harvey
Johann Goethe
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Carl Gauss
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- 90 -
Antoine Lavoisier
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Charles Babbage
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Euclid
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Andre Ampere
Winston Churchill
- 80 -
John Locke
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Bible
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- 70 -
Samuel Morse
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Thomas Edison
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- 60 -
Francis Galton
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- 50 -
Stephen Hawking
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Nikola Tesla
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Max Planck
Henry Adams
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Werner Heisenberg
Alfred Wegener
John Dalton
- 40 -
Pierre Fermat
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JJ Thomson
Thomas Kuhn
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Archimedes
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- 30 -
Andreas Vesalius
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Richard Feynman
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- 20 -
Carl Sagan
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- 10 -
Aristotle
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Michio Kaku
Isaac Asimov
Charles Darwin
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